diff options
Diffstat (limited to 'hw/ppc')
| -rw-r--r-- | hw/ppc/spapr.c | 104 | ||||
| -rw-r--r-- | hw/ppc/spapr_cpu_core.c | 8 |
2 files changed, 75 insertions, 37 deletions
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c index 14b6821a94..03e38039e8 100644 --- a/hw/ppc/spapr.c +++ b/hw/ppc/spapr.c @@ -546,6 +546,51 @@ static int spapr_populate_memory(sPAPRMachineState *spapr, void *fdt) return 0; } +/* Populate the "ibm,pa-features" property */ +static void spapr_populate_pa_features(CPUPPCState *env, void *fdt, int offset) +{ + uint8_t pa_features_206[] = { 6, 0, + 0xf6, 0x1f, 0xc7, 0x00, 0x80, 0xc0 }; + uint8_t pa_features_207[] = { 24, 0, + 0xf6, 0x1f, 0xc7, 0xc0, 0x80, 0xf0, + 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x80, 0x00, + 0x80, 0x00, 0x80, 0x00, 0x00, 0x00 }; + uint8_t *pa_features; + size_t pa_size; + + switch (env->mmu_model) { + case POWERPC_MMU_2_06: + case POWERPC_MMU_2_06a: + pa_features = pa_features_206; + pa_size = sizeof(pa_features_206); + break; + case POWERPC_MMU_2_07: + case POWERPC_MMU_2_07a: + pa_features = pa_features_207; + pa_size = sizeof(pa_features_207); + break; + default: + return; + } + + if (env->ci_large_pages) { + /* + * Note: we keep CI large pages off by default because a 64K capable + * guest provisioned with large pages might otherwise try to map a qemu + * framebuffer (or other kind of memory mapped PCI BAR) using 64K pages + * even if that qemu runs on a 4k host. + * We dd this bit back here if we are confident this is not an issue + */ + pa_features[3] |= 0x20; + } + if (kvmppc_has_cap_htm() && pa_size > 24) { + pa_features[24] |= 0x80; /* Transactional memory support */ + } + + _FDT((fdt_setprop(fdt, offset, "ibm,pa-features", pa_features, pa_size))); +} + static void spapr_populate_cpu_dt(CPUState *cs, void *fdt, int offset, sPAPRMachineState *spapr) { @@ -573,24 +618,6 @@ static void spapr_populate_cpu_dt(CPUState *cs, void *fdt, int offset, _FDT((fdt_setprop_cell(fdt, offset, "ibm,my-drc-index", drc_index))); } - /* Note: we keep CI large pages off for now because a 64K capable guest - * provisioned with large pages might otherwise try to map a qemu - * framebuffer (or other kind of memory mapped PCI BAR) using 64K pages - * even if that qemu runs on a 4k host. - * - * We can later add this bit back when we are confident this is not - * an issue (!HV KVM or 64K host) - */ - uint8_t pa_features_206[] = { 6, 0, - 0xf6, 0x1f, 0xc7, 0x00, 0x80, 0xc0 }; - uint8_t pa_features_207[] = { 24, 0, - 0xf6, 0x1f, 0xc7, 0xc0, 0x80, 0xf0, - 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x80, 0x00, - 0x80, 0x00, 0x80, 0x00, 0x80, 0x00 }; - uint8_t *pa_features; - size_t pa_size; - _FDT((fdt_setprop_cell(fdt, offset, "reg", index))); _FDT((fdt_setprop_string(fdt, offset, "device_type", "cpu"))); @@ -657,18 +684,7 @@ static void spapr_populate_cpu_dt(CPUState *cs, void *fdt, int offset, page_sizes_prop, page_sizes_prop_size))); } - /* Do the ibm,pa-features property, adjust it for ci-large-pages */ - if (env->mmu_model == POWERPC_MMU_2_06) { - pa_features = pa_features_206; - pa_size = sizeof(pa_features_206); - } else /* env->mmu_model == POWERPC_MMU_2_07 */ { - pa_features = pa_features_207; - pa_size = sizeof(pa_features_207); - } - if (env->ci_large_pages) { - pa_features[3] |= 0x20; - } - _FDT((fdt_setprop(fdt, offset, "ibm,pa-features", pa_features, pa_size))); + spapr_populate_pa_features(env, fdt, offset); _FDT((fdt_setprop_cell(fdt, offset, "ibm,chip-id", cs->cpu_index / vcpus_per_socket))); @@ -1759,7 +1775,7 @@ static void ppc_spapr_init(MachineState *machine) /* init CPUs */ if (machine->cpu_model == NULL) { - machine->cpu_model = kvm_enabled() ? "host" : "POWER7"; + machine->cpu_model = kvm_enabled() ? "host" : smc->tcg_default_cpu; } ppc_cpu_parse_features(machine->cpu_model); @@ -2386,6 +2402,7 @@ static void spapr_machine_class_init(ObjectClass *oc, void *data) mc->cpu_index_to_socket_id = spapr_cpu_index_to_socket_id; smc->dr_lmb_enabled = true; + smc->tcg_default_cpu = "POWER8"; mc->query_hotpluggable_cpus = spapr_query_hotpluggable_cpus; fwc->get_dev_path = spapr_get_fw_dev_path; nc->nmi_monitor_handler = spapr_nmi; @@ -2437,18 +2454,39 @@ static const TypeInfo spapr_machine_info = { type_init(spapr_machine_register_##suffix) /* + * pseries-2.8 + */ +static void spapr_machine_2_8_instance_options(MachineState *machine) +{ +} + +static void spapr_machine_2_8_class_options(MachineClass *mc) +{ + /* Defaults for the latest behaviour inherited from the base class */ +} + +DEFINE_SPAPR_MACHINE(2_8, "2.8", true); + +/* * pseries-2.7 */ +#define SPAPR_COMPAT_2_7 \ + HW_COMPAT_2_7 \ + static void spapr_machine_2_7_instance_options(MachineState *machine) { } static void spapr_machine_2_7_class_options(MachineClass *mc) { - /* Defaults for the latest behaviour inherited from the base class */ + sPAPRMachineClass *smc = SPAPR_MACHINE_CLASS(mc); + + spapr_machine_2_8_class_options(mc); + smc->tcg_default_cpu = "POWER7"; + SET_MACHINE_COMPAT(mc, SPAPR_COMPAT_2_7); } -DEFINE_SPAPR_MACHINE(2_7, "2.7", true); +DEFINE_SPAPR_MACHINE(2_7, "2.7", false); /* * pseries-2.6 diff --git a/hw/ppc/spapr_cpu_core.c b/hw/ppc/spapr_cpu_core.c index 6f0533c342..35d1873b9f 100644 --- a/hw/ppc/spapr_cpu_core.c +++ b/hw/ppc/spapr_cpu_core.c @@ -92,20 +92,20 @@ char *spapr_get_cpu_core_type(const char *model) gchar **model_pieces = g_strsplit(model, ",", 2); core_type = g_strdup_printf("%s-%s", model_pieces[0], TYPE_SPAPR_CPU_CORE); - g_strfreev(model_pieces); /* Check whether it exists or whether we have to look up an alias name */ if (!object_class_by_name(core_type)) { const char *realmodel; g_free(core_type); - realmodel = ppc_cpu_lookup_alias(model); + core_type = NULL; + realmodel = ppc_cpu_lookup_alias(model_pieces[0]); if (realmodel) { - return spapr_get_cpu_core_type(realmodel); + core_type = spapr_get_cpu_core_type(realmodel); } - return NULL; } + g_strfreev(model_pieces); return core_type; } |